ZhETF, Vol. 41,
No. 1,
p. 239 (January 1962)
(English translation - JETP,
Vol. 14,
No. 1,
p. 173,
January 1962
)
The issue content is only available in english translation.
The Neutrino and the Density of Matter in the Universe
B. Pontecorvo, Ya. Smorodinskii
Received: February 7, 1961
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